header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 88px;
    text-align: center;
    line-height: 88px;
    padding: 0 20px;
    font-size: 34px;
    background-color: #f7f7f7;
    z-index: 9999;
    @include boxSizing;
    .icon-left {
        position: absolute;
        left: 20px;
        top: 0;
        font-size: 50px;
        font-weight: bold;
    }
    .icon-More {
        font-size: 50px;
        font-weight: 600;
        position: absolute;
        top: 0;
        right: 20px;
    }
}